Table 1.

Demographic Profile of SCCHN Cases and Controls in the Carolina Head and Neck Cancer Study (CHANCE), 2002–2006, Stratified by Race

	Overall (n=2718)				African-Americans (n=615)				Whites (n=2103)
	Cases	n=1340	Controls	n=1378	Cases	n=351	Controls	n=264	Cases	n=989	Controls	n=1114
	n	%	n	%	n	%	n	%	n	%	n	%
Age
20–49	254	19	156	11.3	84	23.9	36	13.6	170	17.2	120	10.8
50–54	210	15.7	161	11.7	71	20.2	47	17.8	139	14.1	114	10.2
55–59	222	16.6	207	15	66	18.8	49	18.6	156	15.8	158	14.2
60–64	229	17.1	205	14.9	57	16.2	46	17.4	172	17.4	159	14.3
65–69	178	13.3	247	17.9	36	10.3	43	16.3	142	14.4	204	18.3
70–74	152	11.3	231	16.8	26	7.4	24	9.1	126	12.7	207	18.6
75–80	95	7.1	171	12.4	11	3.1	19	7.2	84	8.5	152	13.6
Sex
Male	1021	76.2	960	69.7	279	79.5	185	70.1	742	75	775	69.6
Female	319	23.8	418	30.3	72	20.5	79	29.9	247	25	339	30.4
Education High school or less	837	62.5	549	39.8	311	88.6	137	51.9	526	53.2	412	37
Some college	313	23.4	410	29.8	34	9.7	68	25.8	279	28.2	342	30.7
College or more	190	14.2	419	30.4	6	1.7	59	22.4	184	18.6	360	32.3
Proxy Status
Self	1289	96.2	1361	98.8	330	94	261	98.9	959	97	1100	98.7
Proxy	51	3.8	17	1.2	21	6	3	1.1	30	3	14	1.3
Fruit Consumption, mean (sd)	2.15 (1.69)		2.56 (1.72)		2.24 (2.01)		2.50 (1.66)		2.12 (1.58)		2.57 (1.73)
Vegetable Consumption, mean (sd)	2.41 (1.29)		2.14 (0.97)		2.45 (1.77)		2.09 (1.15)		2.40 (1.10)		2.15 (0.92)

sd: standard deviation

^aFruit/vegetable consumption data was unavailable for proxy respondents.